Suicide Overtakes Cancer as Leading Cause of Death for South Koreans in Their 40s

Midlife deaths mark a new turning point

Suicide became the leading cause of death for South Koreans in their 40s in 2024, overtaking cancer for the first time since records began in 1983. Statistics Korea recorded 14,872 deaths by suicide across the country, a rise of 6 percent from 2023 and the highest annual total in 13 years.

Among people in their 40s, suicide accounted for 26 percent of all deaths, compared with 24.5 percent for cancer. The suicide rate in this age group climbed from 31.6 to 36.2 deaths per 100,000 people. That measure describes how many people died by suicide relative to the size of the age group's population, while the percentage describes suicide's share of deaths from every cause.

South Korea's national suicide rate reached 29.1 deaths per 100,000 people, its highest level since 2011. The country already faced a persistent crisis among younger people. The new figures extend that concern into an age group often responsible for household income, raising children and caring for older relatives.

Cancer remained the country's leading cause of death across all ages. For people in their 40s, however, the balance changed. Suicide's share of deaths exceeded cancer's by 1.5 percentage points, making prevention a pressing concern for a group whose responsibilities reach across workplaces and families.

Younger people and men carry a heavy burden

Teenagers and people in their 20s and 30s continued to have suicide as their leading cause of death in 2024. Among teenagers, suicide accounted for 48.2 percent of deaths, up from 46.1 percent in 2023. Nearly half of all deaths in that age group were therefore attributed to suicide.

People in their 30s also experienced a growing share of deaths from suicide. The proportion rose from 40.2 percent in 2023 to 44.4 percent in 2024, an increase of 4.2 percentage points. The corresponding rise among teenagers was 2.1 percentage points.

Men died by suicide at a rate 2.5 times that of women. That gap makes reaching men an especially urgent part of prevention, alongside the work needed to protect younger people and adults in midlife.

People in their 70s and those aged over 80 experienced falling suicide rates, even as South Korea's population continued to age. The figures show different pressures across generations: suicide dominates the causes of death among younger people and those in their 40s, while chronic diseases account for more deaths at very old ages.

Work, debt and caregiving meet in the 40s

People in their 40s often have several demanding roles at once. They may support children who are still in school, help parents living with chronic conditions and hold jobs that involve long hours and substantial responsibility. Maintaining an income becomes especially important when housing, education and care costs compete for the same household budget.

Mortgages, other debts and children's education expenses can build up during this period. Expectations around school performance and enrichment programs add pressure for parents. Meanwhile, longer lives mean more families are supporting older relatives who need continuing care.

The term sandwich generation describes adults caught between supporting children and caring for parents. For these households, a job loss, insecure employment or another financial setback can affect far more than monthly spending. It can disrupt family relationships and a person's sense of identity, while making existing anxiety or depression harder to manage.

Caregiving also consumes time. Someone balancing work, school arrangements and an older parent's health needs may struggle to attend appointments during normal working hours. Financial strain and limited opportunities to seek help can reinforce each other, leaving people with growing distress and little space to address it.

Stigma and gaps in care delay support

People experiencing mental health problems may hesitate to seek counseling or psychiatric treatment because they fear judgment from colleagues, relatives or friends. In workplaces and families where admitting distress feels risky, people can put off asking for help until their situation becomes more difficult.

Men face particular pressure to appear stoic and manage problems without showing vulnerability. That expectation helps explain part of the gap between male and female suicide mortality. Services designed to reach men need to account for their reluctance to engage with care, alongside the practical barriers they face.

Affordable mental health care is also difficult to obtain in some communities, and many areas have long waits for specialists. A person who is ready to seek treatment may still struggle to find a convenient appointment or a nearby provider. Delays can allow a crisis to escalate quickly.

Connecting mental health services with routine medical care offers one way to make support easier to reach. Patients already attending a family doctor or public health center could receive screening and an initial response there, with faster referral when further treatment is needed.

A national rate far above the OECD average

South Korea has the highest suicide mortality rate among members of the Organization for Economic Cooperation and Development, or OECD. Its rate of 29.1 deaths per 100,000 people is close to three times the OECD average of 10.8.

Several OECD countries have reduced suicide mortality over the past decade with sustained investment in primary care, community mental health services and measures that limit access to lethal means during a crisis. South Korea's rate fell after 2011, but it has risen again in recent years, especially among younger people and adults in midlife.

Early monthly figures for 2024 pointed to an unusual increase before the annual total was complete. January recorded a record monthly high. Monthly counts can change with seasonal and social conditions, brief shocks and the effects of widely publicized tragedies. The January increase foreshadowed the higher total for the year.

The rise strengthened calls for consistent outreach, responsible reporting and crisis services available at all hours. Annual figures describe the national burden, while monthly monitoring can help authorities identify a sudden increase and respond sooner.

Local conditions shape the risk

A study published in 2024 examining data at district level found that suicide mortality clustered geographically. Rates were higher among men and in rural and coastal areas. Communities with higher male suicide mortality often had larger proportions of older residents and households with one person, fewer psychiatric clinics and greater unmet medical needs.

Unmet medical needs means people need health care but are unable to obtain it. In a community with few clinics, someone living alone may face both difficulty getting treatment and fewer opportunities for another person to notice that they are struggling.

Metropolitan areas such as Seoul tended to have lower suicide rates, likely reflecting their denser health infrastructure and greater availability of social services. The findings support prevention plans built around local circumstances instead of a single approach applied everywhere.

A rural district with many older residents and few psychiatric providers needs a different response from an urban ward with many young adults. Expanding the mental health workforce outside major cities, strengthening public health centers and using telepsychiatry between visits can address gaps in access. Telepsychiatry allows patients and clinicians to meet remotely.

Community programs that reduce isolation are another part of the response, particularly for men living alone. Their purpose is to connect people with regular support as well as professional care, rather than waiting until an emergency brings them into contact with services.

How the figures changed over time

South Korea's suicide figures have followed an uneven course over the past two decades. Statistical studies identified jumps in reported mortality in 2003 and 2008, followed by a sharp decline around 2012. Improvements in how deaths were classified also changed the historical picture.

More accurate classification reduced the number of deaths recorded under poorly defined or accidental categories and assigned more cases to suicide. Earlier figures consequently underestimated suicide in some years, and part of the increase recorded during the 2000s reflected better identification of cases alongside social and economic pressures.

The main developments span several years:

• 1983: The record series began against which the change in the leading cause of death for people in their 40s is measured.
• 2003 and 2008: Statistical studies identified increases in reported suicide mortality.
• 2011: The Suicide Prevention Act provided a national framework for prevention.
• Around 2012: Studies identified a sharp decline in reported suicide mortality.
• Since around 2017: Suicide rates have climbed again, with progress stalled among younger people and adults in midlife.
• 2024: Suicide deaths reached 14,872, and suicide overtook cancer as the leading cause of death among people in their 40s.

Long historical series help policymakers and clinicians understand these changes. Monitoring recent surges and areas with high rates is also necessary so that services can respond quickly. In 2024, both the number of suicide deaths and the national rate increased.

An aging country faces two health challenges

South Korea recorded 358,569 deaths from all causes in 2024, an increase of 1.7 percent from 2023. People aged 80 and older accounted for 54.1 percent of those deaths, more than 15 percentage points higher than a decade earlier.

Cancer caused about a quarter of all deaths and remained the leading cause nationally. Heart disease ranked second, with a mortality rate of 65.7 deaths per 100,000 people, followed by pneumonia and cerebrovascular disease. Cerebrovascular disease affects the blood vessels supplying the brain.

Suicide ranked fifth across the population, accounting for 4.1 percent of deaths, while dominating the causes of death among people under 50. The national ranking and the rankings for younger age groups describe different parts of the same health burden.

Lung cancer had the highest mortality among cancers, followed by liver, colorectal, pancreatic and stomach cancers. Deaths from prostate, esophageal and pancreatic cancers increased. Deaths from dementia and Alzheimer's disease also rose as the population aged.

Public health services therefore face two substantial demands at once. Older adults need continuing care for chronic illness, while younger people and adults in midlife need a stronger response to suicide risk and mental health problems.

Prevention measures have produced gains

South Korea has invested in suicide prevention over the past two decades. The Suicide Prevention Act of 2011 established a national framework, and targeted measures have helped particular groups.

Restrictions on access to lethal pesticides helped reduce suicide among older adults, especially in rural areas where pesticide ingestion had been a common method. Hospital follow up after a suicide attempt also lowered the risk of another attempt by connecting patients with continuing support.

Gatekeeper training has taught teachers, police officers, social workers and community leaders to recognize warning signs and refer people for help. A gatekeeper in this context is someone who may encounter a person in distress and can help them reach appropriate care.

Progress has nevertheless stalled for younger people and those in midlife, with rates climbing since around 2017. Expanding mental health care through primary care clinics could reduce waits and make seeking help feel more familiar. Same day appointments at public health centers and subsidies for counseling could also reduce practical and financial barriers.

Digital services can support screening, brief therapy and follow up between appointments, with privacy protections. Measures that make lethal means harder to access during a crisis remain another priority, including barriers and surveillance at known jumping points, safer storage programs and changes to sales practices for harmful products.

Media practices also matter. Avoiding detailed descriptions and sensational treatment, while including information about help, can reduce the Werther effect, the rise in suicides that can follow widely publicized deaths. Stories about coping and recovery can encourage people to seek support, an effect sometimes called the Papageno effect.

Support must fit work and family life

For people in their 40s, prevention needs to address mental health alongside work, finances and caregiving. Primary care clinics and workplace health programs can screen for depression, anxiety and alcohol misuse during routine visits and annual checkups.

When clinicians identify risk, they can offer brief interventions, safety planning and prompt referrals for therapy or medication. Safety planning means preparing steps a person can take and identifying support they can contact when distress intensifies.

Employers can provide confidential counseling, flexible schedules during care crises and training that helps managers respond to distress without stigma. These measures give workers a better chance to seek treatment while keeping up with essential responsibilities.

Financial stress also calls for practical support. Coordinating mental health care with debt counseling, housing assistance and legal aid can help stabilize daily life while treatment begins. Caregivers may benefit from respite services, which provide a temporary break from caring duties, as well as leave supported by employers and community day programs for older adults.

Men have the highest risk and often engage less with care. Peer groups, brief counseling through primary care clinics and supportive programs in community centers can offer more accessible ways to connect. The response needs to reach people in the places where they already spend their time.

Help is available now

Anyone in South Korea thinking about suicide or self harm, or worried about another person, can call the Ministry of Health and Welfare helpline at 109. The service operates 24 hours a day, seven days a week. Callers can request a translator for English language services.

The Danuri Portal can be reached at 1577-1366 for foreign language assistance to connect with mental health professionals. If there is immediate danger, contact emergency services or go to the nearest emergency department.

Key Points

• Suicide became the leading cause of death for South Koreans in their 40s in 2024, the first time it overtook cancer since records began in 1983.
• Statistics Korea recorded 14,872 suicide deaths, up 6 percent from 2023 and the highest total in 13 years.
• The national suicide rate reached 29.1 deaths per 100,000 people, the highest since 2011 and close to three times the OECD average of 10.8.
• Among people in their 40s, suicide accounted for 26 percent of deaths, compared with 24.5 percent for cancer.
• Men died by suicide at 2.5 times the rate of women. Suicide's share of deaths also rose among teenagers and people in their 30s.
• Rural and coastal communities with older populations, more people living alone and fewer psychiatric clinics face particular challenges.
• Pesticide restrictions and hospital follow up have helped, while younger people and adults in midlife need more accessible and coordinated support.
• South Korea's 109 suicide prevention helpline operates at all hours. The Danuri Portal at 1577-1366 provides foreign language assistance.